2019 Volume 98 Issue 7 Pages 165-170
Oxy-fuel IGCC is developed as a CO2 recovery type power generation system with high thermal efficiency. In order to verify O2/CO2 blown gasification process applied to the oxy-fuel IGCC, O2/CO2 blown gasification tests were conducted with a coal throughput of 50 tons per one day (50 t/d) scale for the first time. It was confirmed that slag discaharging characteristics was smooth and that the gasifier can be operated stably under O2/CO2 blown conditons. As a result of measurement of major syngas components, it was shown that the performance of 50 t/d gasifier can be predicted by existing simulation method. Hydrocarbon measurement in the syngas was carried out in O2/CO2 blown gasification, and it was suggested that the amout of hydrocarbon can be adjusted by tuning the operating parameters. Furthermore, applicability to a commercial scale oxy-fuel IGCC system was examined by applying the simulation confirmed in the gasification test.